Environmental Engineering In Ce - Study Mode
[#171] Aerobic biological oxidation ponds used for the purification of polluted water
Correct Answer
(D) All of the above
[#172] Carcinogenic air pollutants cause
Correct Answer
(B) Cancer
[#173] TLV of ozone (O 3 ) and phosgene (COCl 2 ) in air is __________ ppm.
Correct Answer
(A) 0.1
[#174] Particles having diameter greater than 75 μm (micrometer = 10-6 mm) are called
Correct Answer
(A) Grit
[#175] World's worst radioactive pollution was caused by nuclear reactor disaster which occured in
Correct Answer
(B) Chernobyl (undivided U.S.S.R.)